import thenFs from "then-fs";
thenFs.readFile('111.txt', 'utf-8').then((r1) => { console.log(r1); })
thenFs.readFile('222.txt', 'utf-8').then((r1) => { console.log(r1); })
thenFs.readFile('333.txt', 'utf-8').then((r1) => { console.log(r1); })